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3 years ago

Which statement is NOT true?

1 answer:

riadik2000 [5.3K]3 years ago

8 0

And integer is a whole number, negative or positive, with no decimals or fractions.
A is true.
B is true.
A rational number is a number that doesn't have an infinite number of decimal.
C is true.
D is false.
<u>The answer is D</u>

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At 2:00 PM a car's speedometer reads 30 mi/h. At 2:20 PM it reads 50 mi/h. Show that at some time between 2:00 and 2:20 the acce

storchak [24]

Answer:

The correct answer will be "60 min/hour".

Step-by-step explanation:

At time 2:00 PM

A car reads = 30 mi/h

At time 2:20 PM

A car reads = 50 mi/h

Now,

At time 2:00 PM

t = 0

At time 2:20 PM

t = $\frac{1}{3}$

$v(0)=30$

$v(\frac{1}{3})=50$

For MVT,

$v'(c)=\frac{v(\frac{1}{3} -v(0))}{(\frac{1}{3} )}$

$=\frac{20}{\frac{1}{3} }$

$=60 \ min/hour$

5 0

3 years ago

Given that f(x) = x2 – 3x - 10 and g(x) = x – 5, find (f - g)(x) and express

Roman55 [17]

Answer:

$(f-g)(x)= x^2-4x-5$

Step-by-step explanation:

We have the two functions:

$f(x)=x^2-3x-10\text{ and } g(x)=x-5$

And we want to find (f-g)(x).

(f-g)(x) is equivalent to f(x)-g(x).

Therefore:

$\begin{aligned} (f-g)(x)&=f(x)-g(x)\\ &=(x^2-3x-10)-(x-5)\end{aligned}$

Simplify:

$\begin{aligned} &=x^2-3x-10-x+5 \\ &=(x^2)+(-3x-x)+(-10+5) \\ &=x^2-4x-5\end{aligned}$

Therefore:

$(f-g)(x)= x^2-4x-5$

8 0

3 years ago

Read 2 more answers

42x + 12 * 18 = 468<br><br> What does x equal

3241004551 [841]

X equals 6

How? Well first I multiplied 12 x 18 which is 216.

Then I subtracted 468 - 216 that equals 252.

Because I know that 2 x 6 equals a 12.....x had to be a 6.

So I multiplied 42 x 6 and it equaled 252.

So x is 6

3 0

3 years ago

In 1970 there were estimated to be around 40,000 Bengal Tigers in the world. The population of Bengal Tigers decreased by an ave

NISA [10]

Answer:

Step-by-step explanation:

y = (40000)0.95^t

t = time in years

4 0

3 years ago

Read 2 more answers

PLSSSS HELP MEEE WITH THISSSS

VashaNatasha [74]

Answer:

x=-6 y=-26

Step-by-step explanation:

in the first is -4 every time, in the second is -20 every time

7 0

3 years ago